. . "11033"^^ . . . "The length of time from when the testing event began to be repeated to when it stopped. This approach has been tested since 2001."@en . "The length of time from when the testing event began to be repeated to when it stopped. This approach has been tested since 2001."@en . "2007-02-12T20:52:16+01:00"^^ . "Extra-Thematic"^^ . "Extra-Thematic" . "Period_of_iterations" . "Period_of_iterations"^^ . "Period_of_iterations" . "per" . . . "KmG" . "The length of time from when the testing event began to be repeated to when it stopped.\nThis approach has been tested since 2001."^^ . .